1. Contraceptive efficacy;Trussell,2011
2. Levels and trends of contraceptive use as assessed in 2002;UN Department of Economic and Social Affairs, Population Division,2006
3. Current contraceptive status among women aged 15–44: United States;Daniels;NCHS Data Brief,2011
4. Compelling reasons for recommending IUDs to any woman of reproductive age;Arias;Int J Fertil Womens Med,2002
5. The intrauterine device: rethinking old paradigms;Morgan;J Midwifery Womens Health,2006